diff options
Diffstat (limited to 'pk/pk.ld')
| -rw-r--r-- | pk/pk.ld | 186 |
1 files changed, 186 insertions, 0 deletions
diff --git a/pk/pk.ld b/pk/pk.ld new file mode 100644 index 0000000..f1ec715 --- /dev/null +++ b/pk/pk.ld @@ -0,0 +1,186 @@ +OUTPUT_ARCH( "mips:riscv" ) + +ENTRY( __start ) + +GROUP( -lc -lgloss -lgcc ) + + +SECTIONS +{ + + /*--------------------------------------------------------------------*/ + /* Code and read-only segment */ + /*--------------------------------------------------------------------*/ + + /* Begining of code and text segment */ + . = 0x00000000; + .boottext : + { + *(.boottext) + } + + . = 0x70000000; + _ftext = .; + PROVIDE( eprol = . ); + + /* text: Program code section */ + .text : + { + *(.text) + *(.text.*) + *(.gnu.linkonce.t.*) + } + + /* init: Code to execute before main (called by crt1.S) */ + .init : + { + KEEP( *(.init) ) + } + + /* fini: Code to execute after main (called by crt1.S) */ + .fini : + { + KEEP( *(.fini) ) + } + + /* rodata: Read-only data */ + .rodata : + { + *(.rdata) + *(.rodata) + *(.rodata.*) + *(.gnu.linkonce.r.*) + } + + /* End of code and read-only segment */ + PROVIDE( etext = . ); + _etext = .; + + /*--------------------------------------------------------------------*/ + /* Global constructor/destructor segement */ + /*--------------------------------------------------------------------*/ + /* The .ctors/.dtors sections are special sections which contain a + list of constructor/destructor function pointers. crtbegin.o + includes code in a .init section which goes through the .ctors list + and calls each constuctor. crtend.o includes code in a .fini + section which goes through the .dtors list and calls each + destructor. crtbegin.o includes a special null pointer in its own + .ctors/.dtors sections which acts as a start indicator for those + lists. crtend.o also includes a special null pointer in its own + .ctors/.dtors sections which acts as an end indictor. The linker + commands below are setup so that crtbegin.o's .ctors/.dtors + sections are always first and crtend.o's .ctors/.dtors sections are + always last. This is the only way the list of functions will have + the begin and end indicators in the right place. */ + + /* ctors : Array of global constructor function pointers */ + .ctors : + { + KEEP( *crtbegin.o(.ctors) ) + KEEP( *(EXCLUDE_FILE(*crtend.o) .ctors) ) + KEEP( *(SORT(.ctors.*)) ) + KEEP( *(.ctors) ) + } + + /* dtors : Array of global destructor function pointers */ + .dtors : + { + KEEP( *crtbegin.o(.dtors) ) + KEEP( *(EXCLUDE_FILE(*crtend.o) .dtors) ) + KEEP( *(SORT(.dtors.*)) ) + KEEP( *(.dtors) ) + } + + /*--------------------------------------------------------------------*/ + /* Other misc gcc segments (this was in idt32.ld) */ + /*--------------------------------------------------------------------*/ + /* I am not quite sure about these sections but it seems they are for + C++ exception handling. I think .jcr is for "Java Class + Registration" but it seems to end up in C++ binaries as well. */ + + .eh_frame_hdr : { *(.eh_frame_hdr) } + .eh_frame : { KEEP( *(.eh_frame) ) } + .gcc_except_table : { *(.gcc_except_table) } + .jcr : { KEEP (*(.jcr)) } + + /*--------------------------------------------------------------------*/ + /* Initialized data segment */ + /*--------------------------------------------------------------------*/ + + /* Start of initialized data segment */ + . = ALIGN(16); + _fdata = .; + + /* data: Writable data */ + .data : + { + *(.data) + *(.data.*) + *(.gnu.linkonce.d.*) + } + + /* lit4: Single precision floating point constants created by gas */ + .lit4 : + { + *(.lit4) + } + + /* lit8: Double precision floating point constants created by gas */ + .lit8 : + { + *(.lit8) + } + + /* End of initialized data segment */ + . = ALIGN(4); + PROVIDE( edata = . ); + _edata = .; + + /*--------------------------------------------------------------------*/ + /* Uninitialized data segment */ + /*--------------------------------------------------------------------*/ + + /* Start of uninitialized data segment */ + . = .; + _fbss = .; + + /* sbss: Uninitialized writeable small data section */ + . = .; + _sbss_start = .; + .sbss : + { + *(.sbss) + *(.sbss.*) + *(.gnu.linkonce.sb.*) + *(.scommon) + } + + /* bss: Uninitialized writeable data section */ + . = .; + _bss_start = .; + .bss : + { + *(.bss) + *(.bss.*) + *(.gnu.linkonce.b.*) + *(COMMON) + } + + /* End of uninitialized data segment (used by syscalls.c for heap) */ + PROVIDE( end = . ); + _end = .; + + /*--------------------------------------------------------------------*/ + /* Special gcc sections (this was in idt32.ld) */ + /*--------------------------------------------------------------------*/ + + .mdebug.abi32 0 : { KEEP(*(.mdebug.abi32)) } + .mdebug.abiN32 0 : { KEEP(*(.mdebug.abiN32)) } + .mdebug.abi64 0 : { KEEP(*(.mdebug.abi64)) } + .mdebug.abiO64 0 : { KEEP(*(.mdebug.abiO64)) } + .mdebug.eabi32 0 : { KEEP(*(.mdebug.eabi32)) } + .mdebug.eabi64 0 : { KEEP(*(.mdebug.eabi64)) } + .gcc_compiled_long32 0 : { KEEP(*(.gcc_compiled_long32)) } + .gcc_compiled_long64 0 : { KEEP(*(.gcc_compiled_long64)) } + +} |